class AddNormsSpecimenAvgSpecimenStandardDeviation < ActiveRecord::Migration
  def self.up
    add_column :norms, :specimen_avg, :float
    add_column :norms, :specimen_standard_deviation, :float
  end

  def self.down
    remove_column :norms, :specimen_avg
    remove_column :norms, :specimen_standard_deviation
  end
end
